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Can I set null as the default value for a @Value in Spring?
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answered Aug 16 '12 at 18:47
nosebrainnosebrain
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How to retrieve all keys (or values) from a std::map and put them into a vector?
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edited Aug 21 at 16:47
Srijan Chaudhary
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How to elegantly ignore some return values of a MATLAB function?
... a hack but it works:
First a quick example function:
Func3 = @() deal(1,2,3);
[a,b,c]=Func3();
% yields a=1, b=2, c=3
Now the key here is that if you use an variable twice in the left hand side of a multiple-expression assignment, an earlier assignment is clobbered by the later assignment:
[b,...
Formatting Phone Numbers in PHP
...SMS app and need to be able to convert the sender's phone number from +11234567890 to 123-456-7890 so it can be compared to records in a MySQL database .
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How to install python3 version of package via pip on Ubuntu?
I have both python2.7 and python3.2 installed in Ubuntu 12.04 .
The symbolic link python links to python2.7 .
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How to export table as CSV with headings on Postgresql?
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Delete a key from a MongoDB document using Mongoose
...collection.update({_id: user._id}, {$unset: {field: 1 }});
Since version 2.0 you can do:
User.update({_id: user._id}, {$unset: {field: 1 }}, callback);
And since version 2.4, if you have an instance of a model already you can do:
doc.field = undefined;
doc.save(callback);
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JPA eager fetch does not join
...d mapped entity/collection of all root entities retrieved in first query = 2 queries
JOIN => one query to fetch both root entities and all of their mapped entity/collection = 1 query
So SELECT and JOIN are two extremes and SUBSELECT falls in between. One can choose suitable strategy based on he...
JavaScript % (modulo) gives a negative result for negative numbers
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Number.prototype.mod = function(n) {
return ((this%n)+n)%n;
};
Taken from this article: ...